Full-Stack/Web Developer (.Net / React)- REMOTE

Full Stack Web Developer – PHP & React | FireFly Robotics | Salt Lake City, UTBuild software that drives autonomous robots in the real world. FireFly Robotics is the world leader in autonomous fairway mowing — and we're growing. Since 2010, we've been engineering fully automated harvesters and robotic field mowers used daily on premier golf courses and sports turf facilities nationwide. Now we're looking for a Full Stack Web Developer to help build the command-and-control interface at the heart of our fleet operations. What You'll Be Building You'll support the web interface and PHP backend that operators rely on to dispatch machines, monitor live status, and review machine activity in real time. This isn't a hand-it-off-at-the-boundary role — you'll work across the full stack and own features end to end.5+ years of production PHP (modern features: strict types, enums, typed properties, readonly, and more) ~ Strong React experience — function components, hooks, TypeScript, Redux Toolkit and RTK Query ~ Database fluency — schema design, query optimization, spotting the N+1 before it hurts ~ Application security fundamentals (SQL injection, XSS, CSRF, auth/authz) ~ Automated testing on both sides of the stack (PHPUnit/Pest and Jest/Vitest) ~ Bonus Points For Real-time data experience (WebSockets, SSE, MQTT) IoT, fleet management, or telemetry systems AWS, Docker/Vagrant, Redis, SQS Bref / serverless PHP Static analysis tools (PHPStan, Psalm) We're a disciplined, fast-moving engineering team solving real problems in the physical world. Our products run outdoors, in real conditions, every day — and the software you build directly impacts how well they perform.